Electro Hardware MP419M03F21M 3 Female Hex Standoff M3x0.5

Product Description

The ELECTRO HARDWARE MP419M03F21M 3 is a female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides reliable corrosion resistance in panel and enclosure environments. It features a fully threaded M3 x 0.5 female thread running the full 10 mm thread depth, a hexagonal body 6 mm across the flats for wrench engagement, and an overall length of 10 mm. Electronics technicians and control board assemblers use it wherever a fixed, repeatable PCB standoff height is required.

This standoff is suited for residential and commercial electronic control panel assemblies, HVAC control boards, industrial enclosures, and general PCB mounting applications where metric M3 x 0.5 threading is specified. Its hex body shape allows installation with a standard open-end or socket wrench, making it appropriate for production and field-service environments alike. The zinc chromate finish supports use in moderate-humidity enclosure environments.

Key Features

• Fully threaded female M3 x 0.5 interior thread with 10 mm thread depth
• Hexagonal body, 6 mm width across flats, for positive wrench engagement
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards
• Compact 10 mm overall length for low-profile PCB stacking
• Length tolerance held to -0.13 mm to 0.13 mm for precise board spacing

Compatibility

Designed as an OEM-style metric standoff for circuit board assemblies requiring M3 x 0.5 female threaded mounting hardware.

Installation Notes

Installation is performed by electronics technicians or control board assemblers. Power down and de-energize all circuits before servicing any PCB assembly. Use an appropriately sized open-end or socket wrench on the hex body to thread and torque the standoff into the mounting surface without damaging the brass threads. Avoid over-tightening, as brass hardware is susceptible to thread stripping.